Safety-envelop.



T. EMBRY.

SAFETY ENVELOP.

APPLICATION FILED SEPT. 15, 1908.

918,982, Patented Apr. 20, 1909.

Wibnmm THOMAS EMBRY, PANIQUI, PHILIPPINE ISLANDS.

SAFETY-ENVELOP.

Specification of Letters Patent.

Patented April 20, 1909..

Application filed September 15, 1908. Serial No. 453,191.

To all whom it may concern:

Be it known that I, THOMAS EMBRY, a citizen of the United States ofAmerica, residing at Paniqui, in the Province of Tarlac, Phili pineIslands, have invented new and usefu Improvements in Safety-Envelops, ofwhich the following is a specification.

This invention relates to safety envelops, and one of the principalobjects of the same is to provide sim le and efficient means for sealingthe enve op so that it cannot be opened without detection;

Another object of theinvention is to provide an envelo having a metalclasp for holding the fol ing flap in connection with the envelop in amanner to prevent the opening of an envelop-without mutilating the same,and thus indicating that the envelop has been tampered with by an unauthorized person.

These and other objects may be attained by means of the constructionillustrated in the accompanying drawing, in which,

Figure 1 is a rear face viewof the envelo sealed. Fig. 2 is a plan viewof the blanr for forming the envelop. Fig. 3 is a plan view and partialsection of the clasp for securing the folding flap, in place and sealingthe envelop. Fig. 4 is a lan view of the blank for forming the fema emember of the clas Fig. 5 is a sectional view taken on the line 55 ofFig. 3.

Referring to the drawing, the numeral 1 is designates the front side ofthe envelop; 2 is the rear flap 3, 3, the side flaps, and 4, the foldingflap. In folding the envelop the side flaps 3 are first folded, and theinner ends, of said flaps extend .one'beyond the other. The fla 2 isthen folded, and the envelop is ready for securing the clasp thereto.

The female member of the clasp consists of a shank 5 having securingrongs 6 extending therefrom, and a tubu ar ortion 7 is formed on the oposite end of sai member b folding the e argedportion 8 of the blankshown in Fig. 4. A spring 9 referably formed of wire is bent upon itseand secured in the tubular portion of the female member by means of astud 10. The inner edges 11 of the tubular portion of the clasp are bentinward between the two members of thesprmg, as shown in Fig. 5, to holdthe spring 1n place. An ear 12 cut from each side of the hollow ortubular member is bent inward to bear against the side arm of the spring9. The terminal ends of the spring 9 are bent inwardly, as at 13.

The male member of the clasp consists of a plate 14 having securingprongs 15 proj ecting therefrom, and an arrow headed engaging member 16designed to be engaged by the inwardly bent ends 13 of the spring 9, asshown in Fig. 3, and to revent the withdrawal of said arrow hea edmember without mutilation of the envelop.

The female member is secured to the back 2 and to the overlapped ends ofthe side flap 3 by bending down the prongs 6 and passing them throughthe back 2 and said overlapping portions of the side flaps 3. The malemember 14 is secured/to the folding flap 4 by passing the body of themember through slits formed in the flap and by meansof the prongs 15engaging said fla The body portion 5 of the female mem er is securedbehind a strap a in the back portion 2 of the envelop, and the prongs 6are bent inwardly after having been passed through the material.

When the two clasp members are engaged the envelop is effectually sealedand cannot be opened surreptitiously. The envelop can be manufactured atslight cost; there are no projecting portions, and, when once sealedcannot be opened except by the person to Which the envelop is addressedwithout detection.

I claim A safety envelop having a two-part clasp secured thereto, onemember of said clasp comprising a tubular portion, a spring securedwithin said tubular portion by a stud and by the inturned edges of saidtubular portion, lugs bent inwardly against said spring, and anarrow-headed engaging member secured to the sealing fla of the envelopand adapted to engage sai spring and to prevent withdrawal therefromwithout mutilation..

In testimony whereof I aflix my signature in presence of two witnesses.

THOMAS EMBRY.

Witnesses:

MARTIN. OWEN, v BURTON E. BOWEN.

